In this study, it is possible to develop to selective and validated stability-indicating HPLC assay method for bisacodyl on a C18 column, which could separate the drug and its degradation products formed under a variety of stress conditions. Bisacodyl was found to be less stable in solution state, whereas it was comparatively much stable in solid state. The method proved to be simple, accurate, precise, specific and selective. Hence it is recommended...